** Description changed: cid:201201-10376 - The system became really laggy when plugged DisplayPort , and only - plugged display output at beginning work still, other displa outputs - remaind no signal. + There are three ports, two DisplayPorts and one VGA, only the initial + cold plugged port will work, and others will not work if you try to hot + swap, but the initial one remains working if you plug back. + + And the system became really laggy when plugged DisplayPort, no matter + it's coldplugged or hot swap later. Trying to hotplug on DisplayPort, getting following messages from syslog: Dec 16 21:50:49 201201-10376 kernel: [ 223.751560] irq 16: nobody cared (try booting with the "irqpoll" option) Dec 16 21:50:49 201201-10376 kernel: [ 223.751567] Pid: 0, comm: swapper/0 Tainted: G C 3.2.0-34-generic #53-Ubuntu Dec 16 21:50:49 201201-10376 kernel: [ 223.751569] Call Trace: Dec 16 21:50:49 201201-10376 kernel: [ 223.751571] <IRQ> [<ffffffff810db2bd>] __report_bad_irq+0x3d/0xe0 Dec 16 21:50:49 201201-10376 kernel: [ 223.751584] [<ffffffff810db545>] note_interrupt+0x135/0x190 Dec 16 21:50:49 201201-10376 kernel: [ 223.751588] [<ffffffff810d8dba>] handle_irq_event_percpu+0xaa/0x210 Dec 16 21:50:49 201201-10376 kernel: [ 223.751592] [<ffffffff810d8f71>] handle_irq_event+0x51/0x80 Dec 16 21:50:49 201201-10376 kernel: [ 223.751596] [<ffffffff810dbf9a>] handle_fasteoi_irq+0x6a/0x110 Dec 16 21:50:49 201201-10376 kernel: [ 223.751601] [<ffffffff81015282>] handle_irq+0x22/0x40 Dec 16 21:50:49 201201-10376 kernel: [ 223.751606] [<ffffffff81666eda>] do_IRQ+0x5a/0xe0 Dec 16 21:50:49 201201-10376 kernel: [ 223.751610] [<ffffffff8165c26e>] common_interrupt+0x6e/0x6e Dec 16 21:50:49 201201-10376 kernel: [ 223.751612] <EOI> [<ffffffff8108e189>] ? enqueue_hrtimer+0x39/0xc0 Dec 16 21:50:49 201201-10376 kernel: [ 223.751623] [<ffffffff8139521a>] ? arch_local_irq_enable+0xb/0xd Dec 16 21:50:49 201201-10376 kernel: [ 223.751627] [<ffffffff81395e1d>] acpi_idle_enter_c1+0x95/0xbf Dec 16 21:50:49 201201-10376 kernel: [ 223.751632] [<ffffffff81507261>] cpuidle_idle_call+0xc1/0x280 Dec 16 21:50:49 201201-10376 kernel: [ 223.751636] [<ffffffff8101222a>] cpu_idle+0xca/0x120 Dec 16 21:50:49 201201-10376 kernel: [ 223.751642] [<ffffffff8162241e>] rest_init+0x72/0x74 Dec 16 21:50:49 201201-10376 kernel: [ 223.751647] [<ffffffff81cfbc03>] start_kernel+0x3b0/0x3bd Dec 16 21:50:49 201201-10376 kernel: [ 223.751652] [<ffffffff81cfb388>] x86_64_start_reservations+0x132/0x136 Dec 16 21:50:49 201201-10376 kernel: [ 223.751657] [<ffffffff81cfb140>] ? early_idt_handlers+0x140/0x140 Dec 16 21:50:49 201201-10376 kernel: [ 223.751661] [<ffffffff81cfb459>] x86_64_start_kernel+0xcd/0xdc Dec 16 21:50:49 201201-10376 kernel: [ 223.751663] handlers: Dec 16 21:50:49 201201-10376 kernel: [ 223.751667] [<ffffffff81492740>] usb_hcd_irq Dec 16 21:50:49 201201-10376 kernel: [ 223.751669] Disabling IRQ #16 ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-34-generic 3.2.0-34.53 ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33 Uname: Linux 3.2.0-34-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu15 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 1476 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xf7c30000 irq 46' Mixer name : 'Intel PantherPoint HDMI' Components : 'HDA:10ec0269,1028053a,00100100 HDA:80862806,80860101,00100000' Controls : 38 Simple ctrls : 16 Date: Sun Dec 16 21:55:26 2012 HibernationDevice: RESUME=UUID=722ec9f2-392d-40de-b3d6-5aa702f4b5be InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) IwConfig: lo no wireless extensions. eth0 no wireless extensions. MachineType: Dell Inc. Precision T1650 MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-34-generic root=UUID=ed31dac2-f2b8-4a04-9295-8534f1cfe58b ro quiet splash initcall_debug vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.2.0-34-generic N/A linux-backports-modules-3.2.0-34-generic N/A linux-firmware 1.79.1 RfKill: SourcePackage: linux StagingDrivers: mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/09/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: X72 dmi.board.vendor: Dell Inc. dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrX72:bd08/09/2012:svnDellInc.:pnPrecisionT1650:pvr01:rvnDellInc.:rn:rvr:cvnDellInc.:ct6:cvr: dmi.product.name: Precision T1650 dmi.product.version: 01 dmi.sys.vendor: Dell Inc.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1091068 Title: [Dell Precision T1650] DisplayPort not working, no hotplug support. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1091068/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
